They also abandoned using any corrective lenses, firing the X-ray pulse through a pinhole and then collecting the diffracted rays after they pass through the sample.
他们也放弃使用任何矫正透镜，而是通过一个针孔发射X光射线，然后采集经过样品后的衍射光线。
2
Natural light, scattering light and diffractedray are removed effectively with those methods. Then, laser spot keeps stable, system precision is improved and an ideal result is obtained.